One question all Protestants need to ask themselves is what is stopping them or any other Protestant they know from going off and independently starting their own denomination. Most Protestants simply don't think about it, but every Protestant who has gone off and started his own church obviously has pondered this question and recognized their 'right' to do this. Ultimately, it reveals a fatal flaw in their system, and that flaw is that ultimately nobody is subject to anyone else. In fact, a well-informed Calvinist I spoke to recently came right out and said he doesn't submit to anyone but Scripture. But how is another Protestant going to stop him from believing this? I don't see a principled way out of this dilemma. And how can a Protestant truly accept texts like Acts 16:4 and Hebrews 13:17, along with the Pastoral Epistles, I truly don't know. I don't think they can. (So much for Protestantism being Biblical.)
This is one of those issues that the more informed Protestants like to keep hushed because it would completely expose the absurdity of their system. A lot of them know that they cannot challenge the 'pastorship' of even their most bitter enemies, because they know what would happen to their own claims to authority. And so they parade around as if their most bitter enemy with even less 'credentials' than themself is still entitled to be regarded as a pastor. When I've confronted Protestants on this issue, they'll often try to get around it by claiming their pastor was ordained by some board of elders or at a Protestant seminary, as if this sufficiently answered the question. But all they're doing is taking the question one step back to who authorized the board of elders or who authorized the seminary. Ultimately, it will always come down to a group of self-appointed pastors who made themselves into a board of elders or who founded the seminary, and acted as if their self-appointed authority was true authority. It's no different than a random dude starting his own mega church. It happens all the time. But the Catholic sees right through all this. The Catholic sees that this is one of the biggest hoaxes foisted upon the world.
In the end, this Protestant mindset ultimately says the visible Church isn't held together by anything concrete, since a person can break off into schism or heresy and be just as much part of the visible Church as anyone else. With this moral, doctrinal, and ecclesial relativism in full swing, the "visible Church" thus goes from something concrete to something abstract, and thus a self-refuting concept (since an abstract thing cannot be visible). And by this point you can realize that just thinking about such a world-wide hoax like this is exhausting. No wonder our society is so much in shambles when this kind of "logic" is running rampant.